Dual frequency and dual circular polarization microstrip nonresonant array pin-fed from a radial line

Reuven Shavit, Lev Pazin, Yaniv Israeli, Michael Sigalov, Yehuda Leviatan

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

A new type of a dual frequency and dual circular polarization multilayer microstrip nonresonant antenna array for satellite communication is presented. The microstrip radiating elements in the array are arranged in concentric circles and fed through pins embedded in a radial line. The radial line is excited through a probe at its center. The microstrip array exhibits a dual frequency band of operation, low side-lobes in the radiation pattern, and high radiation efficiency (more than 65%) for both polarizations. The microstrip element has been designed using commercial software based on the method of finite integral time domain algorithm, and the feed network has been designed by a theoretical analysis. A prototype of the array has been built and tested. The agreement between the measured and numerical results is satisfactory.

Original languageEnglish
Pages (from-to)3897-3905
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume53
Issue number12
DOIs
StatePublished - 1 Dec 2005

Keywords

  • Circular polarization
  • Dual frequency
  • Nonresonant microstrip antenna
  • Radial line

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